Home / 3,127.42-4,315.69-1,711.14

Finding the Fourth Proportional to 3,127.42, 4,315.69 and 1,711.14

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Solution

The fourth proportional to 3,127.42, 4,315.69 and 1,711.14 is: 2,361.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.42 : 4,315.69 = 1,711.14 : x
  2. Step 2: Convert to fraction form
    3,127.42/4,315.69 = 1,711.14/x
  3. Step 3: Cross multiply
    3,127.42x = 4,315.69 × 1,711.14
  4. Step 4: Simplify right side
    3,127.42x = 7,384,734.72
  5. Step 5: Solve for x
    x = 7,384,734.72/3,127.42
  6. Step 6: Final answer
    x = 2,361.28

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.